12 HYMENOPTEKA. 



and behind the ocelli ; the mandibles piceous. The second cubital cellule is as long as 

 the third to the transverse radial nervure; the transverse median is received in the 

 middle of the cellule. The bullae are as in 8. luteus ; and in one specimen the first 

 transverse cubital nervure is completely absent. Claws simple ; metatarsus longer than 

 the other joints together. 



This species is related to 8. luteus; but differs in its shorter and, if any thing, 

 broader body, more slender antennae, longer metatarsi, much longer third cubital 

 cellule, &c. 



15. Strongylogaster luteus. 



Luteus ; antennis (basi excepta), capite, tibiarum apice tarsisque nigris, ore pedibusque albo-testaceis ; alis 



fumatis, costa stigmateque nigris. 

 Long. 8 millim. 



Hab. Panama, Bugaba (Champion). 



The lateral furrows on the vertex are deep, especially behind the ocelli, but they do 

 not extend back the whole length of the vertex ; the central one is absent. The frontal 

 area proper is not defined ; but the lower ocellus is situated in a large hollow. The 

 lateral antennal fovea? are large, deep, and circular ; the central obsolete, or nearly so. 

 The clypeus is truncated at the apex, and rounded at the edges.. Mandibles piceous. 

 The antennae are a little longer than the abdomen and half the thorax; the basal joint 

 has a pedicle, and is (not counting the pedicle) a half longer than the second ; the third 

 is longer than the fourth ; the two apical are as long as, but thinner than the two 

 preceding. The second cubital cellule is shorter than the third, and has a distinct 

 horny point. There is a bulla in the transverse radial, in the first transverse cubital, 

 and in the cubital nervure at its union with the first recurrent nervure. The transverse 

 median nervure is received towards the apical third of the cellule. The metatarsus is 

 nearly -as long as the rest of the joints together. The claws are not bifid. 



Allied to S. tibialis, 8. nigricornis, and S. meritorius, but easily known from them by 

 the entire absence of black from thorax and abdomen. It is also a larger and broader 

 insect ; and the transverse median nervure is received nearer the apex of the cellule than 

 in any of the three. 



16. Strongylogaster leucosoma. (Tab. I. fig. 7, ? .) 



Luteus, antennis pilosis ; capite, antennis, tarsis 4 posterioribus et tibiarum dimidio apicali nigris ; antennis 



basi oreque albis ; alis fuscis, costa stigmateque nigris. 

 Long. 6| millim. 



Hob. Guatemala, San Isidro (Champion). 



Frontal area large, flat, but with the sides sharply defined. Antennal fovea? appearing 

 as large shallow depressions. Clypeus slightly incised. Eyes almost parallel. Antenna? 

 longer than the abdomen, thick, scarcely attenuated towards the apex, densely pilose ; 



